"A browser focused on stealth or privacy features" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
Developer checks and Agent Observatory: A2A, MCP and OpenAPI checks with a dated change log.
Contract-change authorization for AI agents: preflight a change to an API or MCP contract, get a signed decision, and verify the receipt offline. Only a granted change can proceed.
Signed declarations of HTTP API exchanges for agent handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. Start and connect: https://datoka.dev/api. Signatures attest declared data, not independent truth.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Retrieve YouTube transcripts with timestamps, native captions and asynchronous generation when captions are unavailable. Requires a Capslane API key.
API documentation drifts away from the running service, so consumers integrate against a contract nobody keeps. Routebase keeps API design, testing, mocking and documentation on one living source of truth, and this MCP server exposes that workspace to AI agents. Agents can design endpoints, write and run test suites, manage mock servers and publish documentation, always under the permissions of the connected Routebase account.
Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.
Free tools: x402 endpoint directory + probe, on-chain x402 demand signal, sudoku, API pricing.
Discovery registry for AI agents: 660+ APIs, MCP servers and CLIs, each health-checked every 6 hours with real requests — full initialize + tools/list handshakes for MCP, real calls for APIs — plus response-schema validation that catches responses which parse fine but are missing a required field.
Guide developers from setup through a verified, policy-aware, audited Alter API call.
What is known to be broken in an MCP server or API operation, with the check that found it.
Free agent tests (no account or payment); paid ping.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Paid OpenAPI audit and API change detection for agents. $0.10 USDC per analysis via x402 on Base.
Audits a sample of HTTP request URLs against explicit, documented cache-key standardization rules...
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
Generates deterministic webhook HMAC-SHA256 fixtures and optionally verifies a supplied signature...
Webhook capture bins for agents: get a URL, wait for webhooks, set replies, verify signatures.